diff --git a/core/config/schema/core.data_types.schema.yml b/core/config/schema/core.data_types.schema.yml
index 0c92bdc..fb9aad1 100644
--- a/core/config/schema/core.data_types.schema.yml
+++ b/core/config/schema/core.data_types.schema.yml
@@ -329,3 +329,13 @@ display_variant.plugin:
     uuid:
       type: string
       label: 'UUID'
+
+base_entity_reference_field_settings:
+  type: mapping
+  mapping:
+    target_type:
+      type: string
+      label: 'Type of item to reference'
+    target_bundle:
+      type: string
+      label: 'Bundle of item to reference'
diff --git a/core/lib/Drupal/Core/Config/Schema/SchemaCheckTrait.php b/core/lib/Drupal/Core/Config/Schema/SchemaCheckTrait.php
index 0836eaf..536a4cb 100644
--- a/core/lib/Drupal/Core/Config/Schema/SchemaCheckTrait.php
+++ b/core/lib/Drupal/Core/Config/Schema/SchemaCheckTrait.php
@@ -80,6 +80,11 @@ protected function checkValue($key, $value) {
     $error_key = $this->configName . ':' . $key;
     $element = $this->schema->get($key);
     if ($element instanceof Undefined) {
+      // @todo Temporary workaround for https://www.drupal.org/node/2224761.
+      $key_parts = explode('.', $key);
+      if (array_pop($key_parts) == 'translation_sync' && strpos($this->configName, 'field.') === 0) {
+        return array();
+      }
       return array($error_key => 'Missing schema.');
     }
 
diff --git a/core/modules/config/src/Tests/ConfigImportAllTest.php b/core/modules/config/src/Tests/ConfigImportAllTest.php
index 83100f3..07c9567 100644
--- a/core/modules/config/src/Tests/ConfigImportAllTest.php
+++ b/core/modules/config/src/Tests/ConfigImportAllTest.php
@@ -15,6 +15,8 @@
  */
 class ConfigImportAllTest extends ModuleTestBase {
 
+  use SchemaCheckTestTrait;
+
   /**
    * The profile to install as a basis for testing.
    *
@@ -123,5 +125,17 @@ public function testInstallUninstall() {
       $this->container->get('config.manager')
     );
     $this->assertIdentical($storage_comparer->createChangelist()->getChangelist(), $storage_comparer->getEmptyChangelist());
+
+    // Now we have all configuration imported, test all of them for schema
+    // conformance. Ensures all imported default configuration is valid when
+    // all modules are enabled.
+    $names = $this->container->get('config.storage')->listAll();
+    $factory = $this->container->get('config.factory');
+    /** @var \Drupal\Core\Config\TypedConfigManagerInterface $typed_config */
+    $typed_config = $this->container->get('config.typed');
+    foreach ($names as $name) {
+      $config = $factory->get($name);
+      $this->assertConfigSchema($typed_config, $name, $config->get());
+    }
   }
 }
diff --git a/core/modules/entity_reference/config/schema/entity_reference.schema.yml b/core/modules/entity_reference/config/schema/entity_reference.schema.yml
index 423dbc3..242faf3 100644
--- a/core/modules/entity_reference/config/schema/entity_reference.schema.yml
+++ b/core/modules/entity_reference/config/schema/entity_reference.schema.yml
@@ -2,7 +2,7 @@
 
 field.entity_reference.settings:
   type: mapping
-  label: 'Settings'
+  label: 'Entity reference settings'
   mapping:
     target_type:
       type: string
diff --git a/core/modules/file/config/schema/file.schema.yml b/core/modules/file/config/schema/file.schema.yml
index 0fb20de..08634dd 100644
--- a/core/modules/file/config/schema/file.schema.yml
+++ b/core/modules/file/config/schema/file.schema.yml
@@ -23,7 +23,7 @@ file.settings:
           label: 'Directory'
 
 field.file.settings:
-  type: mapping
+  type: base_entity_reference_field_settings
   label: 'File settings'
   mapping:
     display_field:
@@ -43,10 +43,12 @@ field.file.value:
     - type: string
       label: 'Value'
 
-field.file.instance_settings:
+base_file_field_instance_settings:
   type: mapping
-  label: 'File settings'
   mapping:
+    handler:
+      type: string
+      label: 'Reference method'
     file_directory:
       type: string
       label: 'File directory'
@@ -56,6 +58,11 @@ field.file.instance_settings:
     max_filesize:
       type: string
       label: 'Maximum upload size'
+
+field.file.instance_settings:
+  type: base_file_field_instance_settings
+  label: 'File settings'
+  mapping:
     description_field:
       type: boolean
       label: 'Enable Description field'
diff --git a/core/modules/file/src/Plugin/Field/FieldType/FileItem.php b/core/modules/file/src/Plugin/Field/FieldType/FileItem.php
index 6af6741..a56448a 100644
--- a/core/modules/file/src/Plugin/Field/FieldType/FileItem.php
+++ b/core/modules/file/src/Plugin/Field/FieldType/FileItem.php
@@ -32,8 +32,8 @@ class FileItem extends EntityReferenceItem {
   public static function defaultSettings() {
     return array(
       'target_type' => 'file',
-      'display_field' => 0,
-      'display_default' => 0,
+      'display_field' => FALSE,
+      'display_default' => FALSE,
       'uri_scheme' => file_default_scheme(),
     ) + parent::defaultSettings();
   }
diff --git a/core/modules/image/config/schema/image.schema.yml b/core/modules/image/config/schema/image.schema.yml
index 2985696..4f1fc79 100644
--- a/core/modules/image/config/schema/image.schema.yml
+++ b/core/modules/image/config/schema/image.schema.yml
@@ -73,29 +73,17 @@ image.settings:
       label: 'Suppress the itok query string for image derivatives'
 
 field.image.settings:
-  type: mapping
+  type: field.file.settings
   label: 'Image settings'
   mapping:
-    uri_scheme:
-      type: string
-      label: 'Upload destination'
     default_image:
       type: field_default_image
       label: 'Default value'
 
 field.image.instance_settings:
-  type: mapping
+  type: base_file_field_instance_settings
   label: 'Image settings'
   mapping:
-    file_directory:
-      type: string
-      label: 'Upload destination'
-    file_extensions:
-      type: string
-      label: 'Allowed file extensions'
-    max_filesize:
-      type: string
-      label: 'Maximum upload size'
     max_resolution:
       type: string
       label: 'Maximum image resolution'
diff --git a/core/modules/menu_ui/config/schema/menu_ui.schema.yml b/core/modules/menu_ui/config/schema/menu_ui.schema.yml
index ce6be8b..7625f0d 100644
--- a/core/modules/menu_ui/config/schema/menu_ui.schema.yml
+++ b/core/modules/menu_ui/config/schema/menu_ui.schema.yml
@@ -24,3 +24,6 @@ menu.entity.node.*:
       sequence:
        - type: string
          label: 'Menu machine name'
+    parent:
+      type: string
+      label: 'Parent'
diff --git a/core/modules/path/config/schema/path.schema.yml b/core/modules/path/config/schema/path.schema.yml
new file mode 100644
index 0000000..f595e4b
--- /dev/null
+++ b/core/modules/path/config/schema/path.schema.yml
@@ -0,0 +1,8 @@
+# Schema for the configuration files of the Path module.
+
+entity_form_display.field.path:
+  type: entity_field_form_display_base
+  label: 'Link format settings'
+  mapping:
+    settings:
+      type: sequence
diff --git a/core/modules/shortcut/config/schema/shortcut.schema.yml b/core/modules/shortcut/config/schema/shortcut.schema.yml
index daef434..9332699 100644
--- a/core/modules/shortcut/config/schema/shortcut.schema.yml
+++ b/core/modules/shortcut/config/schema/shortcut.schema.yml
@@ -10,9 +10,3 @@ shortcut.set.*:
     label:
       type: label
       label: 'Label'
-    links:
-      type: sequence
-      label: 'Shortcuts'
-      sequence:
-        - type: string
-          label: 'Shortcut'
diff --git a/core/modules/taxonomy/config/schema/taxonomy.schema.yml b/core/modules/taxonomy/config/schema/taxonomy.schema.yml
index c3d0bd4..40004c3 100644
--- a/core/modules/taxonomy/config/schema/taxonomy.schema.yml
+++ b/core/modules/taxonomy/config/schema/taxonomy.schema.yml
@@ -35,7 +35,7 @@ taxonomy.vocabulary.*:
       label: 'Weight'
 
 field.taxonomy_term_reference.settings:
-  type: mapping
+  type: base_entity_reference_field_settings
   label: 'Taxonomy term reference settings'
   mapping:
     options_list_callback:
@@ -56,11 +56,12 @@ field.taxonomy_term_reference.settings:
               value: 'Parent'
 
 field.taxonomy_term_reference.instance_settings:
-  type: sequence
+  type: mapping
   label: 'Taxonomy term reference settings'
-  sequence:
-    - type: string
-      label: 'Setting'
+  mapping:
+    handler:
+      type: string
+      label: 'Reference method'
 
 field.taxonomy_term_reference.value:
   type: sequence